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    Subject[PATCH v6 33/37] tracing: Make tracing_set_clock() non-static
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    Allow tracing code outside of trace.c to access tracing_set_clock().

    Some applications may require a particular clock in order to function
    properly, such as latency calculations.

    Also, add an accessor returning the current clock string.

    Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
    ---
    kernel/trace/trace.c | 2 +-
    kernel/trace/trace.h | 1 +
    2 files changed, 2 insertions(+), 1 deletion(-)

    diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
    index f667a78..16000c9 100644
    --- a/kernel/trace/trace.c
    +++ b/kernel/trace/trace.c
    @@ -6230,7 +6230,7 @@ static int tracing_clock_show(struct seq_file *m, void *v)
    return 0;
    }

    -static int tracing_set_clock(struct trace_array *tr, const char *clockstr)
    +int tracing_set_clock(struct trace_array *tr, const char *clockstr)
    {
    int i;

    diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
    index 52667dd..68153a8 100644
    --- a/kernel/trace/trace.h
    +++ b/kernel/trace/trace.h
    @@ -288,6 +288,7 @@ enum {
    extern void trace_array_put(struct trace_array *tr);

    extern int tracing_set_time_stamp_abs(struct trace_array *tr, bool abs);
    +extern int tracing_set_clock(struct trace_array *tr, const char *clockstr);

    extern bool trace_clock_in_ns(struct trace_array *tr);

    --
    1.9.3
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